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Merge pull request #39369 from CallMeFoxie/validation-hostip

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Automatic merge from submit-queue (batch tested with PRs 40971, 41027, 40709, 40903, 39369)

Validate unique  against HostPort/Protocol/HostIP

**What this PR does / why we need it**:
We can bind to specific IPs however validation will fail for different HostIP:HostPort combination. This is a small fix to check combination of HostPort/Protocol/HostIP rather than just HostPort/Protocol.

Sample configuration
...
"ports": [
              {
                "protocol": "TCP",
                "containerPort": 53,
                "hostPort": 55,
                "hostIP": "127.0.0.1",
                "name": "dns-local-tcp"
              },
              {
                "protocol": "TCP",
                "containerPort": 53,
                "hostPort": 55,
                "hostIP": "127.0.0.2",
                "name": "dns-local-tcp2"
              }
]

Before:
* spec.template.spec.containers[1].ports[2].hostPort: Duplicate value: "55/TCP"
* spec.template.spec.containers[1].ports[3].hostPort: Duplicate value: "55/TCP"

After applying the patch:
Proto Recv-Q Send-Q Local Address           Foreign Address         State       PID/Program name
tcp        0      0 127.0.0.1:55            0.0.0.0:*               LISTEN      3644/docker-proxy
tcp        0      0 127.0.0.2:55            0.0.0.0:*               LISTEN      3629/docker-proxy

Thanks
Ashley

**Release note**:

```release-note
```
This commit is contained in:
Kubernetes Submit Queue 2017-02-06 20:57:18 -08:00 committed by GitHub
commit 9dec47dc28
1 changed files with 1 additions and 1 deletions
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2
pkg/api/validation/validation.go
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@ -1421,7 +1421,7 @@ func AccumulateUniqueHostPorts(containers []api.Container, accumulator *sets.Str
if port == 0 {
continue
}
str := fmt.Sprintf("%d/%s", port, ctr.Ports[pi].Protocol)
str := fmt.Sprintf("%s/%s/%d", ctr.Ports[pi].Protocol, ctr.Ports[pi].HostIP, port)
if accumulator.Has(str) {
allErrs = append(allErrs, field.Duplicate(idxPath.Child("hostPort"), str))
} else {